package com.study01.lesson01_TCP;

import java.io.IOException;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.Socket;

//服务端
public class TcpClientDemo01 {
    public static void main(String[] args) {
        Socket socket =null;
        OutputStream os = null;
        //1.要知道服务器地址
        try {
            InetAddress serverIp = InetAddress.getByName("127.0.0.1");
        //2.端口号
            int port = 9999;
           socket = new Socket(serverIp,port);
            //3发送消息
            os = socket.getOutputStream();
            os.write("你好".getBytes());
        } catch (Exception e) {
            e.printStackTrace();
        }
        finally {
            if (os!=null){
                try {
                    os.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
           if (socket != null){
               try {
                   socket.close();
               } catch (IOException e) {
                   e.printStackTrace();
               }
           }
        }
    }
}
